---
title: "Claude Opus 4.8 is here: effort controls, dynamic workflows, cheaper fast mode, better honesty, less deception"
url: https://daily.dev/posts/claude-opus-4-8-is-here-effort-controls-dynamic-workflows-cheaper-fast-mode-better-honesty-less-9glpmcxmj
source_url: https://thenewstack.io/claude-opus-48-release
type: article
source: "The New Stack"
published: 2026-05-28T18:13:48.147Z
updated: 2026-05-29T00:26:40.924Z
tags: ["llm", "ai-agents", "claude", "anthropic", "claude-code"]
reading_time: 7
upvotes: 1
comments: 0
language: en
---

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# Claude Opus 4.8 is here: effort controls, dynamic workflows, cheaper fast mode, better honesty, less deception

**[The New Stack](https://daily.dev/sources/newstack)** · 7 min read · 1 upvotes · 0 comments

## Summary

Anthropic released Claude Opus 4.8 on May 28, introducing effort controls that let users scale how deeply the model thinks, a dynamic workflows feature in research preview enabling hundreds of parallel subagents for large-scale coding tasks, and a fast mode that is now three times cheaper. The model outperforms its predecessor Opus 4.7, GPT-5.5, and Gemini 3.1 Pro on most benchmarks, though GPT-5.5 still leads in agentic terminal coding. Anthropic also reports significant improvements in honesty, reduced deception, and better support for user autonomy. Leaked signals suggest Sonnet 4.8 and Mythos 1 may be announced soon.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://thenewstack.io/claude-opus-48-release>

---

Tags: [#llm](https://daily.dev/tags/llm), [#ai-agents](https://daily.dev/tags/ai-agents), [#claude](https://daily.dev/tags/claude), [#anthropic](https://daily.dev/tags/anthropic), [#claude-code](https://daily.dev/tags/claude-code)

[View this post on daily.dev](https://daily.dev/posts/claude-opus-4-8-is-here-effort-controls-dynamic-workflows-cheaper-fast-mode-better-honesty-less-9glpmcxmj)